CN1722670A - Communication system, communication terminal equipment and meeting control unit - Google Patents
Communication system, communication terminal equipment and meeting control unit Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
- H04L12/1822—Conducting the conference, e.g. admission, detection, selection or grouping of participants, correlating users to one or more conference sessions, prioritising transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1083—In-session procedures
- H04L65/1093—In-session procedures by adding participants; by removing participants
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
- H04L65/4038—Arrangements for multi-party communication, e.g. for conferences with floor control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
- H04L65/4046—Arrangements for multi-party communication, e.g. for conferences with distributed floor control
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/08—User group management
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- H04W8/186—Processing of subscriber group data
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- H—ELECTRICITY
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- H04M—TELEPHONIC COMMUNICATION
- H04M2203/00—Aspects of automatic or semi-automatic exchanges
- H04M2203/50—Aspects of automatic or semi-automatic exchanges related to audio conference
- H04M2203/5009—Adding a party to an existing conference
Abstract
The invention relates to a communication system, communication terminal equipment, a conference control unit, a communication system control method, a communication terminal equipment control method and a control method for the conference control unit. The communication terminal equipment is equipped with a conference server and the conference control unit. Call controlling protocol information is transmitted to the conference control unit to enable the conference control unit to judge that whether to apply the communication terminal equipment to a conference, and/or whether to create the conference, and/or whether to finish the conference, and/or whether to transmit data about at least one conference which is managed by the conference server to the communication terminal equipment.
Description
Technical field
The present invention relates to a kind of communication system, communication terminal device, conference control unit, communication system control method, communication terminal device control method and conference control unit control method.
Background technology
The 3rd third-generation mobile communication partnership project (3GPP:3rd Generation PartnershipProject) has been developed a standard for the constructing method of so-called Internet Protocol multimedia core network subsystem (IMS:Internet-Protokoll-Multimedia-Core network-Subsystem).
IMS (just 3GPP develop according to the demand of telecommunication network IMS standard) can be that the basis is that mobile communication terminal device provides various communication service with Internet Protocol (IP).
These communication services comprise world-wide web phone (VoIP:Voice-over-Internet-Protocol), video phone and video conference, for example videoconference.
According to IMS, the transfer of data of communication service is based on Internet Protocol (Internet-Protocol).Therefore communication service can be carried out based on the communication system of packet via all, for example WLAN (W-LAN:Wireless-Local-Area-Network), integral data bag wireless technology (GPRS:General Packet Radio Service), global system for mobile communications (UMTS:Universal Mobile Telecommunications System).
Particularly IMS can also provide the path that enters based on many users' application mode for many kinds of communication services.
(IMS) content of conference service is authorized (right to speak control: method Floor Control) and setting order (order control protocol: Conference Policy ControlProtocol) except comprising right, also comprise program, just about how creating, managing (Management), finish, enter and leave the program of a multimedia conferencing based on session initial protocol (SIP:Session Initiation Protocol).
In addition, the content of conference service also comprises the meeting person information relevant with this time meeting and the method for incident (Events) notified.
In the scope of this conference service, various medium can be exchanged between the convention goer.
The meeting of different types such as voice conferencing, video conference, real-time communication meeting, chat meeting, recreation meeting for example can be provided.
List of references [1] is described a kind of planetary conference architecture, and this conference architecture is all convention goers to be linked together via the mode that signal links with a kind of meeting control program.The meeting control program that preceding sentence is mentioned is to be used for controlling meeting, and is that (mode of (Conference)-Focus) is performed in a kind of so-called (meeting) focus.In this this focus (Focus) is exactly a logical block in IMS.
Belonged to meeting of a certain specific focal point (Focus), that is to say by a hoc meeting of a kind of specific focal point (Focus) control and execution, all can be assigned to a meeting address that is called as meeting unified resource indicating device (C-URI:Conference Uniform Resource Indicator).
The meeting address is represented a meeting exactly, and the user of communication system just can add the meeting of this meeting address representative via the meeting address.
The execution scope of focus (Focus) also comprises order server (CPS:Conference of management
Policy Server) order (Conference Policy).
Except the conversion and execution of order, the another one task of focus (Focus) is at this time meeting media content to be distributed to the convention goer.
Need to use a kind of so-called blender for finishing this task focus (Focus), this blender is according to medium rule (Media Policy) running that belongs to the part of order, this blender is subjected to focus (Focus), and is responsible for media content is done the participant that each other tissue and branch are tasked meeting.
The content of list of references [2] is to describe the method that (Create) meeting and adding (Join) meeting are created in the address utilize focus (Focus), below also this address is called meeting unified resource indicating device (C-URI).
If this meeting address is preengage, then make and have the risk that clashes in this way.
That is to say, when a user wants to create a new meeting, might be added in the meeting that has existed, rather than create a new meeting in this paper back detailed explanation will be arranged about this point.
List of references [2] proposes two kinds of session initial protocol (SIP) programs that can be used for creating meeting, that is to say that proposing two kinds of session initial protocols with meeting (SIP) is the method that meeting is created on the basis.
According to the first method that list of references [2] proposes, want the user who creates meeting to send one to meeting factory unified resource indicating device (Conference-Factory-URI) " session initial protocol invites (SIP INVITE) " information (seeing also list of references [3]).
Meeting factory unified resource indicating device (Conference-Factory-URI) is the address of a Conference server, that is to say be one can creation and the address of the server of managerial meeting and affiliated focus thereof.
Necessity structure of the session initial protocol (SIP:Session Initiation Protocol) that list of references [4] proposes comprises that one is used for creating the Conference server of focus, meeting unified resource indicating device (C-URI) and meeting that belongs to focus.
Second kind of method of creating meeting that list of references [2] proposes can be used a meeting unified resource indicating device (C-URI) of reservation in advance.
In the case, a focus that belongs to this address also is present in the meeting unified resource indicating device (C-URI) of a reservation.In the case, the user who wants to create meeting should directly send one to focus " session initial protocol invites (SIP INVITE) " information.
The explanation of basic list of references [2], " session initial protocol invites (SIP INVITE) " and information be received after, will create a meeting, prerequisite is that this meeting was non-existent originally certainly.The required resource of this meeting will be preengage like this, is released then.
If a user wants to add a meeting that has existed, this user and/or his employed terminal equipment also are send one to meeting unified resource indicating device (C-URI) " session initial protocol invites (SIP INVITE) " information.After receiving this information, the focus that belongs to this meeting unified resource indicating device (C-URI) this user will be added one existed and the meeting via meeting unified resource indicating device (C-URI) appointment in.
From user's viewpoint, create the method for a new meeting and the method and the indistinction (please compare list of references [2]) of a meeting that has existed of adding.
But focusing is distinguishing between these two kinds of methods, this difference be exactly focus be to create the meeting of a reservation for this user, or to allow this user add a meeting that has existed.
In list of references [4], also mention being that conference reservation gets off with whole address area, for example complete net territory (conf.vodafone.com) or secondary net territory (
For example from Conference9999@conf.vodafone.com arrivesThe address area of conference9999@conf.vodafone.com).
The address area of this reservation can be applied to meeting.
But may clash in the case.If a certain position user has created a meeting with a specific meeting unified resource indicating device (C-URI) (for example conference666@conf.vodafone.com), then when an other user attempted with identical title and/or meeting of meeting unified resource indicating device (C-URI) creation, this user will be added in this meeting that has existed with this title and/or address.
Will create conflict creating between the meeting that (Create) new meeting and adding (Join) existed like this.
The another one shortcoming is can be used for inquiring the meeting that is managed and prepare via the program based on session initial protocol (SIP) by a Conference server without any a method.
In addition, at present the IMS conference service specification of using (seeing also list of references [2]) can't be invited (SIP INVITE) according to session initial protocol " convention goer of data separation to leave a meeting, or to finish whole meeting.
If a meeting is terminated by a user, represent that all convention goers leave this meeting, this signal that just equals to remove between all convention goers and the focus links (SIP meeting).
But, according to the prior art that list of references [2] is described, only all left meeting all convention goers, meeting just can finish.This is a very big shortcoming in some cases, for example works as a user and has created a meeting and born relevant expense by him, but can't determine but when he leaves this meeting whether this meeting really is moved to end.
List of references [1], [2], and [4] have and mention that how the user participates in the method for a meeting via the SIP end of message.
This method is via " SIP-BYE " end of message SIP dialog (Dialog), thereby related SIP meeting (Session) between meeting participant and the focus is terminated.
Up to the present, utilize the mode of stating to allow a convention goer finish to participate in a conference, but in the ordinary course of things, as long as this meeting also has other participant to exist, this meeting will be proceeded down so.
Though can arrange an order (ConferencePolicy) in advance in the ordinary course of things, regulation is as long as certain specific convention goer leaves meeting, whole meeting just is all over, but up to the present also has (please compare list of references [1]) without any a kind of method of the closing session based on session initial protocol (SIP).
Thisly come the prerequisite of the mode of closing session to be to set order, the user who creates meeting can influence/set order, or can with suitable standard value when the creation meeting with regard to the automatic setting order.
But be not can both set order with the IMS standard in each situation.
Order be set/be operated to mode according to list of references [2] can only optionally with the support of order control protocol (CPCP:Conference Policy Control Protocol).Even the user can support this agreement, that is to say that this agreement can be performed in the communication apparatus that the user uses, the meeting that this user also can only carry out the public area mobile network (H-PLMN:Home Public Land Mobile Network) of his locality is used order control protocol (CPCP) according to the IMS-Rel-6-aufbauprinciple, that is to say that the meeting that can only carry out in the country at user place uses order control protocol (CPCP).
As mentioned above, only left all generally speaking that meeting could meeting adjourned falls with this all convention goers.
Above shortcoming just can not should be meeting and pays how many rates and cause very big problem how to calculate the user actually, from the SIP program of the conference service of IMS and the viewpoint of ISP functional integrity, very big especially shortcoming.
List of references [5] proposes a kind of method, and the employed user agent client of user and/or user (UAC:User Agent Client) can illustrate that his his requirement of preference should be processed in which way via this method.
Can divide into two kinds of dissimilar preferences herein.
First type preference is called " requiring to handle preference (Request-Handling-Preferences) ", and such preference is clearly to indicate server how to handle his requirement (Request).
For example, can indicate server should to be sent this just so-called " fork (forking) " his requirement while to the convention goer's of different contact addresses and user's calling communication terminal device via such preference; Or the indication server should contact different contact addresses in regular turn, this just so-called " seeking (search sequentially) in regular turn ".
Above indication meeting is sent out with the information prefix line (Header) that the title of " requirements-purpose (Request-Diposition) " is placed in a SIP requirement (SIP-Request).
Second type preference is called " feature preferences (Feature-Preferences) ", such preference allows the user who sends out a SIP requirement can specify a stack features, should possess those features with the user agent (UA:User Agent) who describes called convention goer.
Can support the communication terminal device of session initial protocol (SIP), that is to say that the letter terminal equipment that can send SIP requirement (SIP Requests) and require with SIP answer (SIP Responses) responds SIP is called as SIP user agent (UA:User Agent).A user agent (UA:User Agent) has one can send the user agent client (UAC:User AgentClient) of requirement and user agent's server (UAS:User AgentServer) that can be answered requirement.The following description will suppose that each communication terminal device all has a user agent (UA:User Agent).
In order to transmit feature preferences, with use information prefix line that has " accepting to contact (Accept-Contact) sign " and the information prefix line that has " refusal contact (Reject-Contact) sign ".
Indication about feature and/or feature preferences is to utilize the mode of a kind of so-called " feature label (FeatureTags) " to carry out, and just adds specific label (Tags) at information prefix line.
List of references [6] proposes various basic label (Base Tags).
Except the basic label (Base Tags) that last sentence is mentioned, world-wide web engineering work group (IETF) standard is also allowed the label that uses other.
According to list of references [5], the deciphering work of feature can be undertaken by a kind of special sip server (being called the SIP logger again), wants to utilize the user of IMS to finish registration work via this server; Also can itself finish this work by user agent's server (UAS).
User agent (UA) can be sent to SIP logger or other user agent (UA) via the parameter of the sign that has " contact information prefix line (Contact-Header) ".
Like this, the user agent's (UA) of affiliated the SIP logger of the feature that in a meeting of construction (Session), just the user who sends calling can be required and each called user feature do one comparison that contacts the address.
Can select user agent (UA) with that and contact the address accordingly with the feature that meets most with the feature of user's requirement of sending calling.
The requirement of then sending the user of calling will be sent to these contact addresses.
List of references [1], [2], and [4] be exactly that to utilize this method to send some user agents (UA) be exactly the indication of focus.That is to say, this user agent (UA) can add a feature label (belonging to a kind of basic label) of mentioning at list of references [6] that is denoted as " isfocus ", as the parameter of the contact prefix line information prefix line of a SIP information that is sent to another one user agent (UA).Receive that the user agent (UA) that this other user agent (UA) who has accordingly the SIP information of " contact prefix line (Contact-Header) " just can pick out this SIP information of transmission is exactly the focus with function corresponding this moment.
List of references [7] is described a kind of so-called SIP-REFER method, with the same at list of references [1] and [2], the participant of meeting can utilize this method to require a focus that a SIP information that is positioned at REFER information (for example a BYE information or INVITE information) is sent to an address in REFER information, and for example the form with a SIP URI transmits.
A convention goer can require focus to send a SIP-INVITE information to a specific user and/or its user agent (UA) via SIP-REFER.The user who receives this SIP-INVITE information will be invited the adding meeting via this mode.
That is to say that this user is subjected to sending to focus the convention goer's of REFER information invitation adding meeting.
List of references [8] is described structure and the program (stage 2) of IMS.
List of references [9] is described a kind of conference management program, and this hypervisor is to be used under certain conditions meeting being finished.
List of references [10] is described a kind of videoconference of holding between at least 3 participants, this videoconference is to be linked via one electric bridge (Bridge) by the participant who is stored in a long range communication networking in participant's list and a participant who applies for the creation videoconference.
Summary of the invention
Task of the present invention is the conflict situations that will avoid may occurring when creating meeting and adding meeting, can inquire about by the information of the meeting of a conference service management and allow the user come closing session via SIP information.
A kind of communication system, communication terminal device, conference control unit, communication system control method, communication terminal device control method and conference control unit control method via the feature of the independent application project in the patent claim with the present invention can be reached above-mentioned task.
The communication system that the present invention proposes has a Conference server, a conference control unit and at least one communication terminal device, and wherein the task of Conference server is to provide at least one meeting for a plurality of communication terminal devices; At least one communication terminal device that the present invention's communication system has has an information generation unit, the task of this information generation unit is to produce a call control protocol information, this call control protocol information contains call control protocol information Control information, whether the task of this call control protocol information Control information is to illustrate this at least one communication terminal device to be added in the meeting, and/or whether should create a meeting, whether should finish a meeting, and/or whether should with about the data transmission of at least one meeting that provides by Conference server to this at least one communication terminal device; Conference control unit has a determinator, and the task of this determinator is to determine required control information from the information of being received; Conference control unit has a control device, the task of this control device is according to the control information that determines this at least one communication terminal device to be added in the meeting, and/or create a meeting, and/or finish a meeting, and/or will be about the data transmission of at least one meeting that provides by Conference server to this at least one communication terminal device.
In addition, content of the present invention also is included as above-mentioned communication system and the communication terminal device, conference control unit, communication system control method, communication terminal device control method and the conference control unit control method that propose.
In one embodiment of the invention, conference control unit is exactly focus (Focus).
In another execution mode of the present invention, conference control unit is a part that belongs to Conference server.
For convenience of description, content of the present invention can be considered as the in addition suitable utilization of the sharp signal possibility that the standard (for example world-wide web engineering work group (IETF) or the 3rd third-generation mobile communication partnership project (3GPP) standard) of communication system is allowed or in the scope that standard is allowed, be expanded, so that reach a new function employed standard.
The present invention can solve and above-mentionedly create a new meeting and adding contingent conflict between the meeting that has existed, this is because can correctly differentiate the user via control information will add a meeting that has existed, and still will create a new meeting.
In addition, the present invention also can be via the inquiry of communication terminal device about the data by the meeting of conference service management.
In addition, the present invention also can allow the user can finish a meeting, especially can allow the clear and definite indication of user finish a meeting.This function is even more important for the user of the time payment correlative charges of creating meeting and must being undertaken by meeting.
Other favourable execution mode of the present invention is all stated in detail in the patent application project.Relevant it other favourable execution mode of the present invention with the communication system of the present invention's proposition also is applicable to communication terminal device, conference control unit, communication system control method, communication terminal device control method and the conference control unit control method that the present invention proposes.
Call control protocol information preferably meets the information pattern of session initial protocol (SIP) requirement.
In this case, in a ready prepd meeting, just can allow a plurality of communication terminal devices exchange various data each other, for example to chat the data that the mobile mode of (Chat) mode or video signal exchanges.Whole Media Stream via session initial protocol (SIP) construction is also referred to as multimedia conferencing (Mulimedia-Session).
In a kind of favourable execution mode of the present invention, be contained in the call control protocol information in the pattern of control information system with the feature label.
In a kind of favourable execution mode of the present invention, communication system is according to the 3rd third-generation mobile communication partnership project (3GPP) standard design.
The employed feature label of another favourable execution mode of the present invention is a kind of new feature label that is different from world-wide web engineering work group (IETF) standard or the 3rd third-generation mobile communication partnership project (3GPP) standard definition.
For example use a kind of new label " adding (Join) " or " creating (Create) " that is different from world-wide web engineering work group (IETF) standard or the 3rd third-generation mobile communication partnership project (3GPP) standard definition to solve contingent collision problem when creating a new meeting and adding a meeting that has existed.
Another execution mode of the present invention uses a kind of new label that is different from world-wide web engineering work group (IETF) standard or the 3rd third-generation mobile communication partnership project (3GPP) standard definition " to finish (Terminate) " or whether " continuing (Continue) " differentiates the convention goer and want to leave or finish a meeting.
Another execution mode of the present invention uses a kind of new label that is different from world-wide web engineering work group (IETF) standard or the 3rd third-generation mobile communication partnership project (3GPP) standard definition to come clear and definite inquiry about the data by the meeting of a conference service management.
Preferably the feature label is added to and calls out acceptance contact (Accept-Contact) information prefix line or refusal contact (Reject-Contat) prefix line that information is decided in control.
For example, the information that can produce communication terminal device solves contingent collision problem when creating a new meeting and adding a meeting that has existed, this information accept the isfocus feature label that contact information prefix line or refusal contact prefix line contain world-wide web engineering work group (IETF) standard or the 3rd third-generation mobile communication partnership project (3GPP) standard definition.
Whether another execution mode of the present invention is to differentiate the convention goer and want to leave or finish a meeting to be added to the isfocus feature label of accepting contact information prefix line or refusal contact prefix line.
Control information preferably is contained in the call control protocol information in the pattern with a kind of reference.
For example, when sending the signal of closing session, can produce a session initial protocol (SIP) REFER information by communication terminal device, and this information is sent to meeting unified resource indicating device (C-URI:Conference Uniform Ressource Indicator), in this session initial protocol (SIP) REFER information, contain the data of the meeting that C-URI should finish and the character string " method=BYE " in Refer-to-information prefix line.
In addition, this reference data preferably has a virtual parameter at least.
For example, when sending the signal of closing session, can produce a REFER information by communication terminal device, and this information is sent to meeting unified resource indicating device (C-URI:ConferenceUniform Ressource Indicator), in this REFER information, contain virtual parameter (wild symbol, for example " * " or "? ") and character string " method=BYE ", so just can all include the communication terminal device that all come from a particular address district in reference via the Refer-to-information prefix line of REFER information.Utilize this mode just can indicate these should not continue to participate in a meeting that will be moved to end with reference to communication terminal device.Therefore as long as the closing session that suitable selection address area just can be clear and definite.
Clearly, an information that has the reference of virtual parameter is sent to focus, will make an information (for example BYE information) that is equivalent to parameter value " method " be sent to the communication terminal device that all participate in a conference, therefore these communication terminal devices will be received indication, inform that they should leave this meeting or clear and definite meeting adjourned falls with this.
In another favourable execution mode of the present invention, Conference server itself can be via Refer-to-information prefix line by reference, and Conference server will be instructed to meeting is finished like this.
Reference preferably has one or several parameter values.
For example, when sending the signal of closing session, can produce a REFER information by communication terminal device, this REFER information also contains the parameter that another one is represented with a character string (for example " terminate ") except the value that contains a parameter " method " at the Refer-to-information prefix line character string " method=BYE " for " BYE " illustrates the unified resource indicating device (C-URI:Conference Uniform Ressource Indicator).
Preferably reference is added to Refer-to-information prefix line.
Another possible implementation of the present invention is a H.323 design of protocol call control protocol information of foundation.
It is multimedia conferencing that the meeting that is provided by Conference server preferably has at least a kind of, for example voice conferencing, video conference, real-time communication meeting, chat meeting, recreation meeting etc.
Description of drawings
Below cooperate graphic and actual execution mode that content of the present invention is further described.
Fig. 1: the communication system of one embodiment of the present invention
Fig. 2: the information flow of one embodiment of the present invention.
Fig. 3: the information flow of one embodiment of the present invention.
Fig. 4: the information flow of one embodiment of the present invention.
Fig. 1 shows the communication system (100) of one embodiment of the present invention.
Embodiment
Communication system (100) is to design according to global system for mobile communications (UMTS) constructing method that the 3rd third-generation mobile communication partnership project (3GPP:3rdGeneration Partnership Project) is described, and its main constituent is IMS (please refer to list of references [8]).
Communication terminal device (101) is gone into network (102) via an import and is linked with an IMS (111).
Inlet network (102) can be a kind of mobile radio communication network according to global system for mobile communications (UMTS) standard design, just a kind of global mobile communication access network (UniversalTerrestrial Access network), this network can transmit net territory (Packet-Switshed-Domain) via a packet and find the inlet of communication terminal device to IMS (111); Inlet network (102) also can be a kind of inlet network according to global system for mobile communications (GSM) standard design, and just a kind of global system for mobile communications strengthens data transfer rate radio access network (GSM EDGERadio Access Network).
Inlet network (102) also can be a kind of fixed network, for example communication terminal device can have a kind of can foundation towards the device of the inlet of world-wide web (Internet), for example a kind of Digital Subscriber Line (DSL:Digital Subscriber Line)-modulator-demodulator (Modem).In the execution mode of Fig. 1, communication terminal device is to link with IMS (111) via world-wide web (Internet).
Corresponding to the pattern of inlet network (102), communication terminal device (102) can be a tool mobile phone, a computer or a computer that is not equipped with the mobile wireless module that is equipped with the mobile wireless module.
In the execution mode of Fig. 1, inlet network (102) is a kind of mobile radio communications system according to the design of UMTS communication standard.
The mobile wireless network (112) of inlet network (102) has the structure of UMTS wireless network, and this UMTS wireless network is also referred to as UMTS radio access network (UTRAN:UMTS-Terrestrial-Radio-Access-Network)
The inlet network has a PS net territory (140).PS net territory (140) is by supporting GPRS service node (SGSN:Serving GPRS Support Node) and GPRS Support Node communication gate (GGSN:Gateway GPRS Support Node) to constitute, and form the interface that the packet exchange between mobile wireless network (112) and the external data packet data network links, and the inlet that leads to IMS (111).
PS net territory (140) can carry out the promising required function of transmission of guaranteeing the packet exchange data.In addition, PS net territory (140) can also be sent to IMS with signal message.
The network that enters the mouth in addition also has one's original domicile address recorder HLR (141), and this is the central database of all data of stored session participant, and these data all are to set up to link and the required data of execution conference service.
Communication terminal device (101) links via the P-CSCF (103) of inlet network (102) with IMS (111).P-CSCF herein is the abbreviation of Proxy-CSCF (CSCF:Call SessionControl Function (call-conference controlled function)).
The P-CSCF that in return locates (103) and a DNS (104) and an I-CSCF (105) link.DNS herein is the abbreviation of domain name server (Doma in Name Server), and I-CSCF is meant inquiry CSCF (Interrogating-CSCF).
I-CSCF (105) and a HSS (106) and a S-CSCF (107) link.HSS herein is the abbreviation of residential customer server (Home Subscriber Server), and S-CSCF is Serving-CSCF (a service call session control function)) abbreviation.
S-CSCF (107) links with a plurality of application servers (AS:Applikation Server), but only draws one of them application server (138) as representative in graphic.
In addition, S-CSCF (107) also links with a MRFC (142).MRFC is the abbreviation of media resource function controller (Media Resource Function Controller) herein.
Application server (138) and MRFC (142) constitute a Conference server and at least one focus.
Communication terminal device (101), inlet network (102), P-CSCF (103) and DNS (104) are the parts of accessed network V-PLMN (109).
I-CSCF (105), HSS (106), S-CSCF (107) and application server (138) all are the parts of dwelling house telecommunication network H-PLMN (108).
Such as list of references [8] description, P-CSCF (103), I-CSCF (105), HSS (106) and S-CSCF (107) are the parts of Internet Protocol multimedia core network subsystem IMS (IPMultimedia Core network-Subsystem) (111).
The conference service that the user can utilize IMS (111) to provide via communication terminal device (101), for example the communication terminal device that links to another one and communication system (100) sends one " real time information (Instant-Message) ", or and other user with communication system (100) binding carry out a meeting jointly.
Fig. 2 shows the information flow (200) of one embodiment of the present invention.
The information flow system that Fig. 2 shows occurs between a communication terminal device (201), a P-CSCF (202), a S-CSCF (204) and the application server (206).Wherein P-CSCF (202) is the part of accessed network (203), and S-CSCF (204) is the part of the home network of communication terminal device (205), and application server (206) is the part of the home network of application server (207).In the following description, application server will occur together with a MRFC.
In the execution mode of Fig. 2, application server (206) has the function of a Conference server and at least one focus.
The execution mode of Fig. 2 is aforementioned when using new meeting of C-URI creation and use meeting that has existed of C-URI adding with solving, the problem that may clash.
In step (208), the SIP that the user of communication terminal device (201) sends from communication terminal device (201) " invites (INVITE) ", and information can be sent to C-URI and application server AS (206) via P-CSCF (202).In this process, this INVITE information is to be sent to application server AS (206) according to following step via the networking component among Fig. 2.
The structure of this INVITE information is as shown in table 1.
| INVITE?sip：conference666@mrfc2.home2.net?SIP/2.0 |
| Via：SIP/2.0/UDP[5555::aaa:bbb:ccc:ddd]：1357； comp＝sigcomp；branch＝z9hG4bKnashds?7 |
| Max-Forwards：70 |
| Route：<sip：pcscf1.visited1.net：7531；lr；comp＝sigcomp>， <sip：orig@scscf1.home1.net；lr> |
| P-Preferred-Identity：″Holger?Schmidt″ <sip：user1_public1@home1.net> |
| P-Access-Network-Info：3GPP-UTRAN-FDD；utran-cell-id-3gpp |
| ＝234151D0FCE11 |
| Privacy：none |
| From：<sip：user1_public1@home1.net>；tag＝211172 |
| To：<sip：conference666@mrfc2.home2.net> |
| Call-ID：cb03a0s09a2sdfglkj490333 |
| Cseq：127INVITE |
| Require：precondition，sec-agree |
| Proxy-Require：sec-agree |
| Supported：100rel |
| Security-Verify：ipsec-3gpp；q＝0.1；alg＝hmac-sha-1-96； spi-c＝98765432；spi-s＝87654321；port-c＝8642；port-s＝7531 |
| Contact：<sip：[5555::aaa:bbb:ccc:ddd]：1357；comp＝sigcomp> |
| Allow：INVITE，ACK，CANCEL，BYE，PRACK，UPDATE，REFER，MESSAGE |
| Accept-Contact：isfocus |
| Content-Type：application/sdp |
| Content-Length：(...) |
Table 1
(display conference is not described agreement SDP (session Description Protocol))
This INVITE information has one and has the information prefix line of " accepting contact (Accept-Contact) " sign, and uses " isfocus "-feature label (seeing Table 1 the 18th row).
In step (209), P-SCS (202) can utilize the C-URI (seeing Table 1 the 9th row) of INVITE information explanation that INVITE information is sent to S-CSCF (204).
In step (210), S-CSCF (204) can utilize the C-URI of INVITE information explanation that INVITE information is sent to application server (206), again by application server (206) produce corresponding to the focus (216) of given C-URI.
In step (211), whether focus (216) can check INVITE information have isfocus feature label.
If INVITE information has isfocus feature label, then focus (216) will be subjected to indicating create one corresponding to the meeting of given C-URI.
If INVITE information does not have isfocus feature label, then focus (216) will be subjected to indicating the user is added to via in the given meeting of C-URI.
Because in this embodiment, INVITE information has isfocus feature label, thus focus (216) can be subjected to indicating creation given meeting.
Communication terminal device will utilize isfocus feature label to send signal to focus (206) like this, will create the meeting of a reservation so that inform focus (206) itself, rather than will be added in the meeting that has existed.
In step (212), whether focus (216) can check have one to be under the jurisdiction of it and to be created out corresponding to the meeting of C-URI.
This execution mode is that supposition is created out with the person by an other person corresponding to the meeting of C-URI (just conference@mrfc2.home2.net sees Table 1) before this, and has been employed.
Therefore focus (216) can not be added to communication terminal device (201) in the meeting that has existed, give communication terminal device (201) but send a rub-out signal with the form of a SIP " 4xx " information, this " 4xx " information can be sent to S-CSCF (204) in step (213).
In step (214), S-CSCF (204) can be sent to P-CSCF (202) with this " 4xx " information, and then in step (215) this " 4xx " information is sent to communication terminal device (201) by P-CSCF (202).
Communication terminal device this moment (201) just can be selected another one C-URI in for the address area of conference reservation, so that create a new meeting.Then, communication terminal device (201) just can utilize this C-URI that newly selects to attempt creating and activating a meeting again.
Therefore, utilize isfocus feature label just can judge that the user wants to create a new meeting, or want to add a meeting that has existed.
In another execution mode of the present invention, if the user wants to add the given meeting by C-URI, then communication terminal device is isfocus feature label to be added to accept contact information prefix line.
In another execution mode of the present invention, there is the logical label of a kind of new feature that is different from the standard of being used to be defined, the isfocus feature label that the application mode of this new feature label is described in front is the same.
For example, if " add (Join) " feature label or " creating (Create) " feature label is defined, when the user want to create one corresponding to during the meeting of given C-URI, communication terminal device will be added to " creating (Create) " feature label to accept contact information prefix line, when the person with the person want to add one corresponding to during the meeting of given C-URI, communication terminal device will be added to " adding (Join) " feature label to accept contact information prefix line.
Another execution mode of the present invention is to use refusal contact information prefix line, rather than uses and accept contact information prefix line.
As previously described, according to list of references [5], utilize this refusal contact information prefix line can judge which kind of feature user agent (UA) should not have.Refusal contact information prefix line can be employed according to the mode of accepting contact information prefix line, for example, when the user wants to add a meeting, the information that is transmitted in step (208) just should have the refusal prefix line of receiving information, and isfocus feature label is added to this refusal prefix line of receiving information.
Same, also can use the prefix line of refusing to receive information and carry out aforementioned alternative.
When the application refusal was received information the prefix line, the feature label of redetermination was can avoid making the mistake because of implication is fuzzy with respect to the advantage of the feature label of the standard definition of being used.
As long as slightly modified, the execution mode that Fig. 2 shows just can the using SIP program be inquired about the data by the meeting of a conference service management.But news are to be sent to meeting factory unified resource indicating device (Conference Factory URI) in the case.
To use a kind of new feature label that is different from the standard of using in the execution mode of following explanation, its name is called " fetch ".
The information flow of this execution mode is similar to the information flow of the execution mode of Fig. 2.
In this embodiment, INVITE information is to be sent to application server (206), rather than directly be sent to a focus that produces by application server (206) as top a kind of execution mode, if the contact information prefix line of accepting of this NVITE information has a fetch feature label, then application server (206) will be created a meeting, and will about by the data transmission of the meeting of conference service management to communication terminal device (UE) (201).
For this reason one of the Conference server information spinner tagma club of answering information contain about being sent to INVITE information by the data of the meeting of the conference service management meeting list of conference service management (for example by).
This answer information can be " 200OK " information, or another one information, for example an interim answer information.
For example, this answer information can contain following about the data by the meeting of conference service management:
--the address of meeting, the meeting unified resource indicating device (C-URIC) of meeting just;
--create the user agent's (UA) of meeting unified resource indicating device (URI);
--about the description of meeting, the theme of meeting for example.
So just can with inquiry about by the data conformity of the meeting of conference service management in the program of creating meeting.
Fig. 3 shows the information flow (300) of one embodiment of the present invention.
The information flow system that Fig. 3 shows occurs between a communication terminal device (301), a P-CSCF (302), a S-CSCF (304) and the application server (306).Wherein P-CSCF (302) is the part of accessed network (303), and application server (306) is the part of the home network of communication terminal device (305).
In this embodiment, application server (306) is a Conference server.
Execution mode via following explanation can utilize meeting of the SIP end of message.
In step (308), the user of communication terminal device (301) is sent to P-CSCF (302) from communication terminal device (301) with the information that a name that contains relevant for the explanation of C-URI is called " BYE ".
The structure of this BYE information is as shown in table 2.
This BYE information has the information prefix area that a name is called " acceptance contact ", and this information prefix area adds " isfocus " feature label (seeing Table 2 the 11st row).
| Via：SIP/2.0/UDP[5555::aaa:bbb:ccc:ddd]：1357； comp＝sigcomp；branch＝z9hG4bKnashds7 |
| Max-Forwards：70 |
| Route：<sip：pcscf1.visited1.net：7531；lr；comp＝sigcomp>， <sip：orig@scscf1.home1.net；lr> |
| P-Access-Network-Info：3GPP-UTRAN-FDD； utran-cell-id-3gpp＝234151D0FCE11 |
| From：<sip：user1_public1@home1.net>；tag＝171828 |
| To：<sip：conference-factory1@mrfc1.home1.net>；tag＝314159 |
| Call-ID：cb03a0s09a2sdfglkj490333 |
| Require：sec-agree |
| Proxy-Require：sec-agree |
| Security-Verify：ipsec-3gpp；q＝0.1；alg＝hmac-sha-1-96； spi-c＝98765432；spi-s＝87654321；port-c＝8642；port-s＝7531 |
| Accept-Contact：isfocus |
| Cseq：153BYE |
| Content-Length：0 |
Table 2
In step (309), P-SCS (302) can utilize the C-URI (seeing Table 2 the 6th row) of BYE information explanation that BYE information is sent to S-CSCF (304).
In step (310), S-CSCF (304) can utilize the C-URI of BYE information explanation that BYE information is sent to application server (306), produces focus (316) by application server (306) again, and this focus (316) can provide the meeting via the C-URI addressing.
In step (311), whether focus (316) can check BYE information have isfocus feature label.
If BYE information has isfocus feature label, then focus (316) will finish the meeting via the C-URI addressing.All like this convention goers can leave this meeting.If BYE information does not have isfocus feature label, then focus (316) will allow user (301) leave this meeting.
Because in this embodiment, BYE information has isfocus feature label, thus focus (316) can be subjected to indicating will meeting adjourned falls corresponding to C-URI, and allow all users leave this meeting.
In step (312), focus (316) is answered communication terminal device (301) with the information of " 200OK ", is equipped with this " 200OK " information can be sent to S-CSCF (304).
In step (313), S-CSCF (304) is sent to P-CSCF (302) with " 200OK " information, and then in step (314) " 200OK " information is sent to communication terminal device (301) by P-CSCF (302).
This execution mode is to suppose to also have other convention goer except the user who utilizes communication terminal device (301).
Because in this embodiment, BYE information has isfocus feature label, so focus (316) can just finish the SIP talk with other convention goer in step (315) with the meeting end.
In this embodiment, utilize the isfocus feature label of accepting the contact information prefix area of BYE information just can judge that the user wants to leave meeting (but meeting is still proceeded down), or want to tie meeting (user also can leave meeting certainly in this case).
The same with the execution mode of Fig. 2, the execution mode of Fig. 3 also has multiple different alternate embodiments.
Especially can be the same with the execution mode that is similar to Fig. 2, do not use isfocus feature label, and the feature label that is to use the redetermination that more is same as the standard of using is as signal, sharp showing as the feature label that is called " finishing (terminate) " with name wanted closing session, or show that with the feature label that name is called " continue (continue) " user will leave meeting, but meeting is still proceeded down.
Fig. 4 shows the information flow (400) of one embodiment of the present invention.
The information flow system that Fig. 4 shows occurs between a communication terminal device (401), a P-CSCF (402), a S-CSCF (404) and the application server (406).Wherein P-CSCF (402) is the part of accessed network (403), and application server (406) is the part of the home network of communication terminal device (405).
In this embodiment, application server (406) is a Conference server.
Execution mode described below is a kind of alternate embodiments of the execution mode of Fig. 3, also can be used for finishing a meeting.
Execution mode described below is that the SIP-REFER method of utilizing list of references [7] to illustrate finishes a meeting.
In step (407), the user of communication terminal device (401) is sent to P-CSCF (402) from communication terminal device (401) with SIP " REFER " information that contains C-URI.
The structure of this REFER information is as shown in table 3.
| REFER?sip：conference666@mrfc1.home1.net?SIP/2.0 |
| Via：SIP/2.0/UDP[5555::aaa:bbb:ccc:ddd]：1357； comp＝sigcomp；branch＝z9hG4bKnashds7 |
| Max-Forwards：70 |
| Route：<sip：pcscf1.visited1.net：7531；lr；comp＝sigcomp>， |
| <sip：orig@scscf1.home1.net；lr> |
| P-Preferred-Identity：″Holger?Schmidt″ <sip：user1_public1@home1.net> |
| P-Access-Network-Info：3GPP-UTRAN-FDD； utran-cell-id-3gpp＝234151D0FCE11 |
| Privacy：none |
| From：<sip：user1_public1@home1.net>；tag＝171828 |
| To：<conference666@mrfc1.home1.net> |
| Call-ID：cb03a0s09a2sdfglkj490333 |
| Cseq：127REFER |
| Require：sec-agree |
| Refer-To：<sip：conference666@mrfc1.home1.net；method＝BYE> |
| Referred-By：<sip：user1_public1@home1.net> |
| Proxy-Require：sec-agree |
| Security-Verify：ipsec-3gpp；q＝0.1；alg＝hmac-sha-1-96；spi -c＝98765432；spi-s＝87654321；port-c＝8642；port-s＝7531 |
| Contact：<sip：[5555::aaa:bbb:ccc:ddd]：1357；comp＝sigcomp> |
| Content-Length：0 |
Table 3
This REFER information has the information prefix area (its definition as list of references [7] as described in) that a name is called " Refer-To ", and C-URI and parameter value are contained for the name of " BYE " is called the parameter of " method " in this information prefix area, that is to say that this information prefix area contains character string " method=BYE " (seeing Table 3 the 13rd row).
In step (408), P-SCS (402) can utilize the C-URI (seeing Table 3 the 9th row) of REFER information explanation that REFER information is sent to S-CSCF (404).
In step (409), S-CSCF (404) can utilize the C-URI of REFER information explanation that REFER information is sent to application server (406), again by application server (406) produce corresponding to the focus (421) of given first C-URI.
In step (410), whether the Refer-To information prefix area of focus (421) meeting checking R EFER information contains C-URI and character string " method=BYE ".
If C-URI and character string " method=BYE " are contained in the Refer-To information prefix area of REFER information, then focus (421) will finish the meeting corresponding to C-URI.
In step (412), S-CSCF (404) can will receive information be sent to P-CSCF (402), and then this is received information in step (423) by P-CSCF (402) and to be sent to communication terminal device (401).
Because in this embodiment, C-URI and character string " method=BYE " are contained in the Refer-To information prefix area of REFER information, therefore Focus Club terminates meeting in step (414), just finish to talk, and discharge the shared resource of this meeting with all convention goers' SIP.
Utilize the user of communication terminal device (401) can leave meeting this moment.Therefore focus (421) information that can a name be called " BYE " in step (415) is sent to S-CSCF (404), and then further is sent to communication terminal device (401).
In step (416), S-CSCF (404) is with this " BYE " information is sent to P-CSCF (402), and then by P-CSCF (402) in step (417) with this " BYE " information communication terminal equipment (401).
In step (418), in order to confirm to receive this " BYE " information, communication terminal device can send " 200OK " information to P-CSCF (402), and this " 200OK " information can further be sent to application server (406).
In step (419), P-CSCF (402) is sent to S-CSCF (404) with this " 200OK " information, and then in step (420) this " 200OK " information is sent to focus (4210 by S-CSCF (404).
According to list of references [7], in Refer-to information prefix area, can use a general parameter.
In a kind of feasible alternate embodiments of the execution mode that can be used as Fig. 4, this general parameter be used for informing focus (421) should with by given C-URI addressing meeting adjourned falls.
The information flow of the information flow of this alternate embodiments and the execution mode of Fig. 4 is similar.The structure of the REFER information of this alternate embodiments is as shown in table 4.
| REFER?sip：conference666@mrfc1.home1.net?SIP/2.0 |
| Via：SIP/2.0/UDP[5555::aaa:bbb:ccc:ddd]：1357； comp＝sigcomp；branch＝z9hG4bKnashds7 |
| Max-Forwards：70 |
| Route：<sip：pcscf1.visited1.net：7531；lr；comp＝sigcomp>， |
| <sip：orig@scscf1.home1.net；lr> |
| P-Preferred-Identity：″Holger?Schmidt″ <sip：user1_public1@home1.net> |
| P-Access-Network-Info：3GPP-UTRAN-FDD； utran-cell-id-3gpp＝234151D0FCE11 |
| Privacy：none |
| From：<sip：user1_public1@home1.net>；tag＝171828 |
| To：<conference666@mrfc1.home1.net> |
| Call-ID：cb03a0s09a2sdfglkj490333 |
| Cseq：127REFER |
| Require：sec-agree |
| Refer-To： <sip：conference666@mrfc1.home1.net；method＝BYE；terminate> |
| Referred-By：<sip：user1_public1@home1.net> |
| Proxy-Require：sec-agree |
| Security-Verify：ipsec-3gpp；q＝0.1；alg＝hmac-sha-1-96；spi -c＝98765432；spi-s＝87654321；port-c＝8642；port-s＝7531 |
| Contact：<sip：[5555::aaa:bbb:ccc:ddd]：1357；comp＝sigcomp> |
| Content-Length：0 |
Table 4
Shown in table 4 the 13rd row, compared to the execution mode of Fig. 4, alternate embodiments is added the general parameters of a parameter value for " finishing (terminate) " in addition.
The effect of character string " terminate " be the indication Conference server will corresponding to given C-URI meeting adjourned falls.
The information flow of another execution mode of the present invention also is similar with the information flow of the execution mode of Fig. 4, but the structure of its REFER information then is as shown in table 5.
| REFER?sip：conference666@mrfc1.home1.net?SIP/2.0 |
| Via：SIP/2.0/UDP[5555::aaa:bbb:ccc:ddd]：1357； comp＝sigcomp；branch＝z9hG4bKnashds?7 |
| Max-Forwards：70 |
| Route：<sip：pcscf1.visited1.net：7531；lr；comp＝sigcomp>， |
| <sip：orig@scscf1.home1.net；lr> |
| P-Preferred-Identity：″Holger?Schmidt″ <sip：user1_public1@home1.net> |
| P-Access-Network-Info：3GPP-UTRAN-FDD； utran-cell-id-3gpp＝234151D0FCE11 |
| Privacy：none |
| From：<sip：user1_public1@home1.net>；tag＝171828 |
| To：<conference666@mrfc1.home1.net> |
| Call-ID：cb03a0s09a2sdfglkj490333 |
| Cseq：127REFER |
| Require：sec-agree |
| Refer-To： <sip：*@*；method＝BYE> |
| Referred-By：<sip：user1_public1@home1.net> |
| Proxy-Require：sec-agree |
| Security-Verify：ipsec-3gpp；q＝0.1；alg＝hmac-sha-1-96；spi -c＝98765432；spi-s＝87654321；port-c＝8642；port-s＝7531 |
| Contact：<sip：[5555::aaa:bbb:ccc:ddd]：1357；comp＝sigcomp> |
| Content-Length：0 |
Table 5
Shown in table 5 the 13rd row, contain virtual parameter in the Refer-to of this execution mode information prefix area, just so-called wild symbol (Wildcard).
Virtual parameter " @ " represent all address areas.
Also can utilize virtual parameter to represent single address area, for example with
* @-mobile.deRepresent.
Because all convention goers' communication terminal device all is to be represented by virtual parameter " @ ", so focus (421) will be sent a BYE information to all convention goers after receiving REFER information.
Just can allow all convention goer's defections discuss via transmit BYE news to all convention goers, meeting will be moved to end like this.
As long as there is a user to send as above-mentioned REFER information, meeting will be moved to end.
Therefore as long as just can clear and definite in the manner described above meeting be terminated via SIP information.
The list of references that this specification is quoted is as follows:
[1]IETF?SIPPING?Working?Groupe：draft-ietf-sipping-conferencing-framwork-01
[2]3GPP?TR?29.847：Conferencing?based?on?SIP，SDP，and?other?protocols
[3]RFS?3261：SIP：Session?Initiation?Protocol
[4]IETF?SIPPING?Working?Groupe：draft-ietf-sipping-cc-conferencing-03
[5]IETF?SIPPING?Working?Groupe：draft-ietf-sip-callerprefs-10
[6]IETF?SIPPING?Working?Groupe：draft-ietf-sip-callee-03
[7]IETF?RFC?3515：The?SIP?Refer?Method
[8]3GPP?TS?23.228：IP?multimedia?subsystem；Stage?2
[9]US?5?737?530
[10]DE?100?30?189?A1
Description of reference numerals
100 communication systems
101 communication terminal devices
102 entrance networks
103 P-CSCF
104 DNS
105 I-CSCF
106 HSS
107 S-CSCF
108 H-PLMN
109 V-PLMN
111 IMS
112 mobile wireless networks
138 application servers
140 PS net the territory
141 one's original domicile address recorders (HLR)
142 MRFC
200 communication systems
201 communication terminal devices
202 P-CSCF
203 accessed networks
204 S-CSCF
The home network of 205 communication terminal devices
206 application servers
The home network of 207 application servers
The 208-215 operating procedure
216 focuses
300 information flows
301 communication terminal devices
302 P-CSCF
303 accessed networks
304 S-CSCF
The home network of 305 communication terminal devices
306 application servers
The 308-315 operating procedure
316 focuses
400 information flows
401 communication terminal devices
402 P-CSCF
403 accessed networks
404 S-CSCF
The home network of 405 communication terminal devices
406 application servers
The 407-420 operating procedure
421 focuses
Claims (18)
1. communication system, this communication system has a Conference server, a conference control unit and at least one communication terminal device, wherein,
--the task of Conference server is to provide at least one meeting for a plurality of communication terminal devices;
--this at least one communication terminal device has an information generation unit, the task of this information generation unit is to produce a session initial protocol information, this session initial protocol information contains session initial protocol information Control information, and the task of this call control protocol information Control information is explanation:
--whether this at least one communication terminal device should be added in the meeting, and/or
--whether should create a meeting, and/or
--whether should finish a meeting, and/or
--whether should with about the data transmission of at least one meeting that provides by Conference server to this at least one communication terminal device;
--conference control unit has a determinator, and the task of this determinator is to determine required control information from the information of being received;
--conference control unit has a control device, and the task of this control device is according to the control information that determines,
--this at least one communication terminal device is added in the meeting, and/or
--create a meeting, and/or
--finish a meeting, and/or
--will be about the data transmission of at least one meeting that provides by Conference server to this at least one communication terminal device.
2. communication system as claimed in claim 1 is characterized by: be contained in the call control protocol information in the pattern of control information with the feature label.
3. communication system as claimed in claim 2 is characterized by: communication system is according to the 3rd third-generation mobile communication partnership project (3GPP) standard design.
4. communication system as claimed in claim 3 is characterized by: employed feature label is world-wide web engineering work group (IETF) standard or the defined feature title of the 3rd third-generation mobile communication partnership project (3GPP) standard.
5. communication system as claimed in claim 3, it is characterized by: employed feature label is not world-wide web engineering work group (IETF) standard or the defined feature title of the 3rd third-generation mobile communication partnership project (3GPP) standard, but the title that redefines.
6. as each communication system in the claim 3 to 5, it is characterized by: acceptance contact (Accept-Contact) information prefix line or refusal contact (Reject-Contat) prefix line that the feature label are added to session initial protocol (Session Initiation Protocol) information.
7. communication system as claimed in claim 1 is characterized by: be contained in the call control protocol information in the pattern of control information with a kind of reference.
8. communication system as claimed in claim 7 is characterized by: reference data has a virtual parameter at least.
9. as the communication system of claim 7 or 8, it is characterized by: reference has one or several parameter values.
10. as each communication system in the claim 7 to 9, it is characterized by: communication system system is according to the 3rd third-generation mobile communication partnership project (3GPP) standard design.
11. the communication system as claim 10 is characterized by: reference is added to Refer-to-information prefix line.
12. communication system as claimed in claim 1 is characterized by: foundation is design of protocol session initial protocol (SIP:Session Initiation Protocol) information H.323.
13. as each communication system in the claim 1 to 12, it is characterized by: it is multimedia conferencing that the meeting that is provided by Conference server has at least a kind of.
14. method of controlling communication system, this communication system has one can be for a plurality of communication terminal devices provide the Conference server of at least one meeting, a conference control unit and at least one communication terminal device, according to the method for this control communication system:
--this at least one communication terminal device can produce a session initial protocol information, and this session initial protocol information contains session initial protocol information Control information, and the task of this call control protocol information Control information is explanation:
--whether this at least one communication terminal device should be added in the meeting, and/or
--whether should create a meeting, and/or
--whether should finish a meeting, and/or
--whether should with about the data transmission of at least one meeting that provides by Conference server to this at least one communication terminal device;
--conference control unit can determine required control information from the information of being received;
--conference control unit can determine according to the control information that determines:
--this at least one communication terminal device is added in the meeting, and/or
--create a meeting, and/or
--finish a meeting, and/or
--will be about the data transmission of at least one meeting that provides by Conference server to this at least one communication terminal device.
15. a kind of communication terminal device method of communication system, this communication system have a Conference server that at least one meeting can be provided for a plurality of communication terminal devices, simultaneously,
--this communication terminal device has an information generation unit, the task of this information generation unit is to produce a session initial protocol information, this session initial protocol information contains session initial protocol information Control information, and the task of this call control protocol information Control information is explanation:
--whether this communication terminal device should be added in the meeting, and/or
--whether should create a meeting, and/or
--whether should finish a meeting, and/or
--whether should with about the data transmission of at least one meeting that provides by Conference server to this communication terminal device.
16. a method of controlling the communication terminal device of communication system, this communication system have a Conference server that at least one meeting can be provided for a plurality of communication terminal devices, according to the method for the communication terminal device of this control communication system:
--this communication terminal device can produce a session initial protocol information, and this session initial protocol information contains session initial protocol information Control information, and the task of this call control protocol information Control information is explanation:
--whether this communication terminal device should be added in the meeting, and/or
--whether should create a meeting, and/or
--whether should finish a meeting, and/or
--whether should with about the data transmission of at least one meeting that provides by Conference server to this communication terminal device.
17. a kind of communication control unit of communication system, this communication system have a communication terminal device at least, and a Conference server, the task of this Conference server is for a plurality of communication terminal devices provide at least one meeting, simultaneously,
--conference control unit has a determinator, and the task of this determinator is to determine required control information to determine from the information of being received:
--this at least one communication terminal device is added in the meeting, and/or
--create a meeting, and/or
--finish a meeting, and/or
--will be about the data transmission of at least one meeting that provides by Conference server to this at least one communication terminal device;
--conference control unit has a control device, and the task of this control device is according to the control information that determines,
--this at least one communication terminal device is added in the meeting, and/or
--create a meeting, and/or
--finish a meeting, and/or
--will be about the data transmission of at least one meeting that provides by Conference server to this at least one communication terminal device.
18. method of controlling the communication control unit of communication system, this communication system has a communication terminal device at least, and Conference server, the task of this Conference server is for a plurality of communication terminal devices provide at least one meeting, according to the method for the communication control unit of this control communication system:
--conference control unit can determine required control information to determine from the information of being received:
--this at least one communication terminal device is added in the meeting, and/or
--create a meeting, and/or
--finish a meeting, and/or
--will be about the data transmission of at least one meeting that provides by Conference server to this at least one communication terminal device;
--conference control unit can be according to the control information that determines,
--this at least one communication terminal device is added in the meeting, and/or
--create a meeting, and/or
--finish a meeting, and/or
--will be about the data transmission of at least one meeting that provides by Conference server to this at least one communication terminal device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004026785A DE102004026785B4 (en) | 2004-06-02 | 2004-06-02 | A communication system, communication terminal, conference control unit, method for controlling a communication system, method for controlling a communication terminal, and method for controlling a conference control unit |
| DE102004026785.5 | 2004-06-02 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810095204.2A Division CN101621500A (en) | 2004-06-02 | 2005-06-02 | Communication system, communication terminal device and conference control unit |
Publications (2)
| Publication Number | Publication Date |
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| CN1722670A true CN1722670A (en) | 2006-01-18 |
| CN100438418C CN100438418C (en) | 2008-11-26 |
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| CN200810095204.2A Pending CN101621500A (en) | 2004-06-02 | 2005-06-02 | Communication system, communication terminal device and conference control unit |
| CNB2005100785474A Expired - Fee Related CN100438418C (en) | 2004-06-02 | 2005-06-02 | Communication system, communication terminal equipment and meeting control unit |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810095204.2A Pending CN101621500A (en) | 2004-06-02 | 2005-06-02 | Communication system, communication terminal device and conference control unit |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20060153352A1 (en) |
| CN (2) | CN101621500A (en) |
| DE (1) | DE102004026785B4 (en) |
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| US8311201B2 (en) | 2006-12-19 | 2012-11-13 | Huawei Technologies Co., Ltd | Method and system for controlling a conference |
| CN104170345A (en) * | 2012-03-27 | 2014-11-26 | 瑞典爱立信有限公司 | Unconditional and immediate service capabilities for rule based services |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8311201B2 (en) | 2006-12-19 | 2012-11-13 | Huawei Technologies Co., Ltd | Method and system for controlling a conference |
| CN101267325B (en) * | 2007-03-16 | 2012-02-15 | 华为技术有限公司 | Method, conference server and terminal for originating and joining in conference session |
| CN102215117A (en) * | 2010-04-09 | 2011-10-12 | 夏普株式会社 | Electronic conferencing system, electronic conference operations method and conference operations terminal |
| CN104170345A (en) * | 2012-03-27 | 2014-11-26 | 瑞典爱立信有限公司 | Unconditional and immediate service capabilities for rule based services |
| CN104170345B (en) * | 2012-03-27 | 2018-04-03 | 瑞典爱立信有限公司 | Service ability for the unconditional of rule-based service and immediately |
| US10218565B2 (en) | 2012-03-27 | 2019-02-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Unconditional and immediate service capabilities for rule based services |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101621500A (en) | 2010-01-06 |
| DE102004026785B4 (en) | 2006-12-28 |
| US20060153352A1 (en) | 2006-07-13 |
| DE102004026785A1 (en) | 2006-01-19 |
| CN100438418C (en) | 2008-11-26 |
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